나물콩用 品種育成을 위한 特性形質의 比較

Evaluation of Important Sprouting Characteristics of Edible Soybean Sprout Cultivars

The small seed size group of 164 native soybean lines which were collected for germplasm bank was evaluated for use of edible soybean sprout by the characteristics of bean sprout such as germinability, elongation of hypocotyl, performance of sprout production and the other related characters in laboratory and field. Significant differences for sprout yield, hypocotyl elongation, and germinability among the soybean lines tested were observed. Maximum, average and minimum hypotocyl length and weight of sprout were 8.8, 5.5, 2.0㎝ and 61.8, 43.0, 27.6 g/100 sprouts respectively. The weight and diameter of sprout and cotyledon length were positively correlated with the seed weight. On the other hand the elongation responses of hypocotyl were naively correlated with the seed weight(r=-0.57). About 90 percent among the soybean lines of small seed size group contained the hard seeds which were unable to germinate within the sprouting of the normal seeds, and the frequency of hard seeds varied from 1% to 50% which was depended upon lines. Some promising qualified soybean sprouting lines could be selected for the improvement of soybean sprout cultivar.